<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div id="app">
        <!-- 1、简单的列表渲染 -->
        <ul>
            <li v-for="n in 10">{{ n }} </li>
        </ul>


        <ul>
            <!-- 如果想获取索引，则使用index关键字，注意，圆括号中的index必须放在后面 -->
            <li v-for="(n, index) in 5">{{ n }} - {{ index }} </li>
        </ul>
        

                <!-- 2、遍历数据列表 -->
        <table border="1">
            <!-- <tr v-for="item in userList"></tr> -->
            <tr v-for="(item, index) in userList">
                <td>{{index}}</td>
                <td>{{item.id}}</td>
                <td>{{item.username}}</td>
                <td>{{item.age}}</td>
            </tr>
</table>
    </div>
    <script src="vue.min.js"></script>
    <script>
        new Vue({
            el: '#app',
            data: {
                        userList: [
                { id: 1, username: 'helen', age: 18 },
                { id: 2, username: 'peter', age: 28 },
                { id: 3, username: 'andy', age: 38 }
            ]
            }
        })
    </script>
</body>

</html>